tpr2854

Lost the only set of keys to my vette. Called the dealer and they advised due to the age they wouldn't be able to get the key codes to make new keys. Can anyone tell me if they are located anywhere on the car? If not, is there any other way to locate them.

DUB

This is odd. I though all that info is in a data base that ONE person in the dealership has the ability to obtain. I know that there is ONLY one guy I can call at my local dealership that can get that information.

I do not know where you are because you have no Public Information available...so I do not know if you are in the United States or over seas.

I also know that a locksmith can cut a key...and find the value of your chip in the key. so you can get keys.

DUB

tpr2854

Thanks DUB. I was surprised when the dealer told me what he did. Figures a dealer in NY wouldn't know what they were doing.

WVZR-1

The dealer was very "FACTUAL" in what they passed on to you. Your '87 isn't available in the current GM VIN request data base for key information.

I'm sorry but it doesn't actually matter "WHO YOU KNOW" for the OP's request they really aren't available in the ordinary VIN request. The original selling dealer would have it and if the ORIGINAL purchaser had his original dealer invoice it's quite likely recorded on it. I don't know what year you were requesting for your self but dealers do have rather restricted access to the VIN data. It is very seldom just a single individual.

cudamax

It's a real Dinosaur of a System. Easily Defeated. Only 15 different Keys
The Vats chart
Key Code Resistance Acceptable Range

1 402 386 - 438
2 523 502 - 564
3 681 650 - 728
4 887 850 - 942
5 1130 1085 - 1195
6 1470 1411 - 1549
7 1870 1795 - 1965
8 2370 2275 - 2485
9 3010 2890 - 3150
10 3740 3590 - 3910
11 4750 4560 - 4960
12 6040 5798 - 6302
13 7500 7200 - 7820
14 9530 9149 - 9931
15 11800 11328 - 12292
You can also by-pass the module

Cliff Harris

You can buy a new ignition cylinder with the corresponding keys.

The trick is to find out what resistance the VATS system is expecting to see. You can find that out by taking the VATS module apart. See this article I wrote that explains a lot about the VATS module:

https://www.corvetteforum.com/c4-tec...schematic.html

If you follow the link in post #7 and look at R3 in the upper left corner, that's the same resistance that's in your key pellet. I put the resistance in MY car there. Yours will probably be different. Find R3 in your VATS module and you've got it. The components are not numbered on the PC board, but it's the resistor next to pin W in the first picture of post #1. It's a 1% resistor. Here's a resistor color code chart to figure out what the different colored bands mean (use the center example):

WVZR-1

The OP can remove the key cylinder from the storage compartment and with some talent a competent locksmith can use that cylinder along with some creative work to create the door key. The storage compartment doesn't use a full complement of tumblers that are required for the door cylinder.

Regarding the ignition, the OP can first check to see if in-fact the harness at the column base is actually connected to the key cylinder OR maybe there's already been the most common bypass done to the car. That would be the insertion of a resistor at that connecter.

If it's actually still wired then I'd buy a new cylinder and using a VATS Interrogator determine the value that will actually start the car. That can be a procedure requiring some patience but you avoid disassembling the dash and removing the VATS module (TDM KEY DECODER) as Cliff suggested doing to read the resistor.

There's from time to time a vendor on eBay that sells TDM-KDM NOS with the VATS code supplied.

For the OP there's NO get the dealer to supply the codes, a new cylinder will be required OR find the keys.

If your an owner of a GM car that uses VATS and you've a single set of keys - GET DUPLICATES and MAKE SURE THEY WORK!

DUB

WVZR-1

I STAND CORRECTED. Obtaining information for key codes and such on Corvette prior to 1990 is quite sketchy as best. Some 1989's can be obtained but not much before that. I talked with the guy in the local dealership that has access to obtaining this information...and he confirmed it...and he should know ...because he is the only one with the access to obtain it....at least at this specific dealership that I use.

DUB